<?php

/**

 * List Table API: WP_Plugin_Install_List_Table class

 *

 * @package WordPress

 * @subpackage Administration

 * @since 3.1.0

 */

/**

 * Core class used to implement displaying plugins to install in a list table.

 *

 * @since 3.1.0

 * @access private

 *

 * @see WP_List_Table

 */

class WP_Plugin_Install_List_Table extends WP_List_Table {

	public $order   = 'ASC';

	public $orderby = null;

	public $groups  = array();

	private $error;

	/**

	 * @return bool

	 */

	public function ajax_user_can() {

		return current_user_can( 'install_plugins' );

	}

	/**

	 * Return the list of known plugins.

	 *

	 * Uses the transient data from the updates API to determine the known

	 * installed plugins.

	 *

	 * @since 4.9.0

	 * @access protected

	 *

	 * @return array

	 */

	protected function get_installed_plugins() {

		$plugins = array();

		$plugin_info = get_site_transient( 'update_plugins' );

		if ( isset( $plugin_info->no_update ) ) {

			foreach ( $plugin_info->no_update as $plugin ) {

			}

		}

		if ( isset( $plugin_info->response ) ) {

			foreach ( $plugin_info->response as $plugin ) {

			}

		}

		return $plugins;

	}

	/**

	 * Return a list of slugs of installed plugins, if known.

	 *

	 * Uses the transient data from the updates API to determine the slugs of

	 * known installed plugins. This might be better elsewhere, perhaps even

	 * within get_plugins().

	 *

	 * @since 4.0.0

	 *

	 * @return array

	 */

	protected function get_installed_plugin_slugs() {

		return array_keys( $this->get_installed_plugins() );

	}

	/**

	 * @global array  $tabs

	 * @global string $tab

	 * @global int    $paged

	 * @global string $type

	 * @global string $term

	 */

	public function prepare_items() {

		include_once ABSPATH . 'wp-admin/includes/plugin-install.php';

		global $tabs, $tab, $paged, $type, $term;

		wp_reset_vars( array( 'tab' ) );

		$paged = $this->get_pagenum();

		$per_page = 36;

		// These are the tabs which are shown on the page.

		$tabs = array();

		if ( 'search' === $tab ) {

			$tabs['search'] = __( 'Search Results' );

		}

		if ( 'beta' === $tab || false !== strpos( get_bloginfo( 'version' ), '-' ) ) {

			$tabs['beta'] = _x( 'Beta Testing', 'Plugin Installer' );

		}

		$tabs['featured']    = _x( 'Featured', 'Plugin Installer' );

		$tabs['popular']     = _x( 'Popular', 'Plugin Installer' );

		$tabs['recommended'] = _x( 'Recommended', 'Plugin Installer' );

		$tabs['favorites']   = _x( 'Favorites', 'Plugin Installer' );

		if ( current_user_can( 'upload_plugins' ) ) {

			// No longer a real tab. Here for filter compatibility.

			// Gets skipped in get_views().

			$tabs['upload'] = __( 'Upload Plugin' );

		}

		$nonmenu_tabs = array( 'plugin-information' ); // Valid actions to perform which do not have a Menu item.

		/**

		 * Filters the tabs shown on the Add Plugins screen.

		 *

		 * @since 2.7.0

		 *

		 * @param string[] $tabs The tabs shown on the Add Plugins screen. Defaults include

		 *                       'featured', 'popular', 'recommended', 'favorites', and 'upload'.

		 */

		$tabs = apply_filters( 'install_plugins_tabs', $tabs );

		/**

		 * Filters tabs not associated with a menu item on the Add Plugins screen.

		 *

		 * @since 2.7.0

		 *

		 * @param string[] $nonmenu_tabs The tabs that don't have a menu item on the Add Plugins screen.

		 */

		$nonmenu_tabs = apply_filters( 'install_plugins_nonmenu_tabs', $nonmenu_tabs );

		// If a non-valid menu tab has been selected, And it's not a non-menu action.

		if ( empty( $tab ) || ( ! isset( $tabs[ $tab ] ) && ! in_array( $tab, (array) $nonmenu_tabs, true ) ) ) {

			$tab = key( $tabs );

		}

		$installed_plugins = $this->get_installed_plugins();

		$args = array(

			'page'     => $paged,

			'per_page' => $per_page,

			// Send the locale to the API so it can provide context-sensitive results.

			'locale'   => get_user_locale(),

		);

		switch ( $tab ) {

			case 'search':

				$type = isset( $_REQUEST['type'] ) ? wp_unslash( $_REQUEST['type'] ) : 'term';

				$term = isset( $_REQUEST['s'] ) ? wp_unslash( $_REQUEST['s'] ) : '';

				switch ( $type ) {

					case 'tag':

						$args['tag'] = sanitize_title_with_dashes( $term );

						break;

					case 'term':

						$args['search'] = $term;

						break;

					case 'author':

						$args['author'] = $term;

						break;

				}

				break;

			case 'featured':

			case 'popular':

			case 'new':

			case 'beta':

				$args['browse'] = $tab;

				break;

			case 'recommended':

				$args['browse'] = $tab;

				// Include the list of installed plugins so we can get relevant results.

				$args['installed_plugins'] = array_keys( $installed_plugins );

				break;

			case 'favorites':

				$action = 'save_wporg_username_' . get_current_user_id();

				if ( isset( $_GET['_wpnonce'] ) && wp_verify_nonce( wp_unslash( $_GET['_wpnonce'] ), $action ) ) {

					$user = isset( $_GET['user'] ) ? wp_unslash( $_GET['user'] ) : get_user_option( 'wporg_favorites' );

					// If the save url parameter is passed with a falsey value, don't save the favorite user.

					if ( ! isset( $_GET['save'] ) || $_GET['save'] ) {

						update_user_meta( get_current_user_id(), 'wporg_favorites', $user );

					}

				} else {

					$user = get_user_option( 'wporg_favorites' );

				}

				if ( $user ) {

					$args['user'] = $user;

				} else {

					$args = false;

				}

				add_action( 'install_plugins_favorites', 'install_plugins_favorites_form', 9, 0 );

				break;

			default:

				$args = false;

				break;

		}

		/**

		 * Filters API request arguments for each Add Plugins screen tab.

		 *

		 * The dynamic portion of the hook name, `$tab`, refers to the plugin install tabs.

		 *

		 * @since 3.7.0

		 *

		 * @param array|false $args Plugin install API arguments.

		 */

		$args = apply_filters( "install_plugins_table_api_args_{$tab}", $args );

		if ( ! $args ) {

			return;

		}

		$api = plugins_api( 'query_plugins', $args );

		if ( is_wp_error( $api ) ) {

			$this->error = $api;

			return;

		}

		$this->items = $api->plugins;

		if ( $this->orderby ) {

			uasort( $this->items, array( $this, 'order_callback' ) );

		}

		$this->set_pagination_args(

			array(

				'total_items' => $api->info['results'],

				'per_page'    => $args['per_page'],

			)

		);

		if ( isset( $api->info['groups'] ) ) {

			$this->groups = $api->info['groups'];

		}

		if ( $installed_plugins ) {

			$js_plugins = array_fill_keys(

				array( 'all', 'search', 'active', 'inactive', 'recently_activated', 'mustuse', 'dropins' ),

				array()

			);

			$js_plugins['all'] = array_values( wp_list_pluck( $installed_plugins, 'plugin' ) );

			$upgrade_plugins   = wp_filter_object_list( $installed_plugins, array( 'upgrade' => true ), 'and', 'plugin' );

			if ( $upgrade_plugins ) {

				$js_plugins['upgrade'] = array_values( $upgrade_plugins );

			}

			wp_localize_script(

				'updates',

				'_wpUpdatesItemCounts',

				array(

					'plugins' => $js_plugins,

					'totals'  => wp_get_update_data(),

				)

			);

		}

	}

	/**

	 */

	public function no_items() {

		if ( isset( $this->error ) ) { ?>

			<div class="inline error"><p><?php echo $this->error->get_error_message(); ?></p>

				<p class="hide-if-no-js"><button class="button try-again"><?php _e( 'Try Again' ); ?></button></p>

			</div>

		<?php } else { ?>

			<div class="no-plugin-results"><?php _e( 'No plugins found. Try a different search.' ); ?></div>

			<?php

		}

	}

	/**

	 * @global array $tabs

	 * @global string $tab

	 *

	 * @return array

	 */

	protected function get_views() {

		global $tabs, $tab;

		$display_tabs = array();

		foreach ( (array) $tabs as $action => $text ) {

			$current_link_attributes                     = ( $action === $tab ) ? ' class="current" aria-current="page"' : '';

			$href                                        = self_admin_url( 'plugin-install.php?tab=' . $action );

			$display_tabs[ 'plugin-install-' . $action ] = "<a href='$href'$current_link_attributes>$text</a>";

		}

		// No longer a real tab.

		unset( $display_tabs['plugin-install-upload'] );

		return $display_tabs;

	}

	/**

	 * Override parent views so we can use the filter bar display.

	 */

	public function views() {

		$views = $this->get_views();

		/** This filter is documented in wp-admin/inclues/class-wp-list-table.php */

		$views = apply_filters( "views_{$this->screen->id}", $views );

		$this->screen->render_screen_reader_content( 'heading_views' );

		?>

<div class="wp-filter">

	<ul class="filter-links">

		<?php

		if ( ! empty( $views ) ) {

			foreach ( $views as $class => $view ) {

				$views[ $class ] = "\t<li class='$class'>$view";

			}

			echo implode( " </li>\n", $views ) . "</li>\n";

		}

		?>

	</ul>

		<?php install_search_form(); ?>

</div>

		<?php

	}

	/**

	 * Displays the plugin install table.

	 *

	 * Overrides the parent display() method to provide a different container.

	 *

	 * @since 4.0.0

	 */

	public function display() {

		$singular = $this->_args['singular'];

		$data_attr = '';

		if ( $singular ) {

			$data_attr = " data-wp-lists='list:$singular'";

		}

		$this->display_tablenav( 'top' );

		?>

<div class="wp-list-table <?php echo implode( ' ', $this->get_table_classes() ); ?>">

		<?php

		$this->screen->render_screen_reader_content( 'heading_list' );

		?>

	<div id="the-list"<?php echo $data_attr; ?>>

		<?php $this->display_rows_or_placeholder(); ?>

	</div>

</div>

		<?php

		$this->display_tablenav( 'bottom' );

	}

	/**

	 * @global string $tab

	 *

	 * @param string $which

	 */

	protected function display_tablenav( $which ) {

		if ( 'featured' === $GLOBALS['tab'] ) {

			return;

		}

		if ( 'top' === $which ) {

			wp_referer_field();

			?>

			<div class="tablenav top">

				<div class="alignleft actions">

					<?php

					/**

					 * Fires before the Plugin Install table header pagination is displayed.

					 *

					 * @since 2.7.0

					 */

					do_action( 'install_plugins_table_header' );

					?>

				</div>

				<?php $this->pagination( $which ); ?>

				<br class="clear" />

			</div>

		<?php } else { ?>

			<div class="tablenav bottom">

				<?php $this->pagination( $which ); ?>